Brit Submarines Return To Port

Meanwhile, HMS Vengeance (S31) returned home from a training run in much less triumphant fashion, accompanied by press reports that she had lost propulsion:

An MoD spokesman said: "Vengeance has suffered a mechanical defect resulting in a reduction in propulsion. She is returning to Faslane under her own power. She is still at sea."He added that the incident is "not nuclear related".The spokesman said he was unable to confirm reports by a newspaper that the submarine's propulsion unit had become fouled by sea debris.

How would you rather return to homeport? To public acclaim after a successful war patrol? Or to public ridicule doing 3 knots on the outboard? (OK, that question is kind of rhetorical. My memory of slinking back home is here.)